Liquid-fuel heater



.March 31. 1925.

- R. L. CONDRA LIQI-JID FUEL HEATER I Filed Aug. 12 1924 Jioeri 1;Conclk Patented Mar. 31, 1925.

RO'BER'I LEE'VCONDRA, OF SAN ANTONIO; TEXAS.

LIQUID+FU EL HEATER. 5

Application filed August 12,1924 Serial No. 731,648.

To all whom it may concern."

Be it knownthat 1, ROBERT L. Comma, a c1t1zen+of the United Statesy andresident; of

San Antonioyin: the county 'oflBexaivand Stateof :TeXa-s, have inventeda newt-and .l of substantially U-shaped for1nat1on 1nclud ImprovedLiquid F uel Heater, of: which the following is a full, clean; and exactdescriptions This invention has relation-to liquid fuel heating devicesand has particular reference to an improvement in-fuol oil heaters whichare especially designed for use in connection with steam, hot water orhot-air furnaces.

One of the principal objects of the present invention, is to-provi'dea-means for thor oughly' gasi-fying the fuel oil, pr-iorztothe ignitionof thesame, wherebyithe maximum heat may be derived therefrom;

As a further object the invention; contemplatesin a fuel oil heater, ameans for effectually mixing; :theair and gas to pro mote a morethorough combustion thereof, which means alsoservestoyeffectually;1radiate the heat anddistribute the same throughoutthe fire box in which the device is located" As a Stld-hfllltllOl.object the invention comprel'iends an improvelnent in fuel oil heaterswhich is comparativelysimple-in its construction, I inexpensive tomanufacture and install and which is thoroughly reliableand highlyefficient in itsplu pose.

\Vith theab'overecited and other objects.

in View the inivention. resides in-the novel construction set forth inthe; following speci-. fication, particularly,pointed out in the apspended claims and illustrated in :the accompanying drawings, itbeingunderstoodthat the right is reserved to-eiinbodiments other than thoseactuallyillustrated herein, to the full extent indicatedby the generalmeaning I of the terms in which tllG'Olitllllb' are expressed.

In the d rawings Figure l is a perspective view-o-fthe device;

Fig. 1 is a perspective view of the heating cup used for startingthe'burner;

Fi g. 2 is a transverse sectional viewthrough the heating device takenapproxi mately on the line 2-2rinllig l; and

Fig. 3 is a horizontal sectional view taken approximately onthe line 33in Fig; 2.

Eeferringsto the drawings by characters of reference 10 designates asupportingbase for the device whichis provided at oneend withianupstanding standards 11 which sup ports atiits upper end the bightportion 12. of the fuel gasify'ingaor generatingelement designatedgenerally at 13 which'element is is provided! with a depending pipe orconduit 21 connected thereto by an elbow 22oand said pipe 21is connectedat its lower end by an elbow. 23 with the base 10' byvmeans of attachingears 24 and bolts 25 which extend ithi'ough" the ears and base 10; Fromtheelbow 23a pipe or conduit 26 leads horizontally, to the loweriend of.a nozzle 27 which [is disposed centrally below the gasifying orgenerating memberl3.

super-posed air and gas mixingi and heat radiating element designatedgenerally by,th'e reference character 28' is supported from thegasifying or generatingelement 13 and the said element-28 consists of arectangular shaped element 29 having a double archshaped. bottom 30'provided with a central depending stem 31 which is gripped by theparallel pipes 14 and 15 of the gasifying or generating element 18. Theside walls of therectangular shaped element-29 are pro,- vided with aplurality of perforations 32 botlra'bove and below the depending archshaped bottom 80'. An air supply pipe 33 having a perforated lowe1,end'34l leads cen trallyinto the element 29' and rests upon The bottom30. The leads or pipes 14- and 15 are disposed immediately below theconvex undersides definedby the d0uble-arch shaped bottom 30. y

In startingthe device, a heatingcup or pan is employed which is providedwith a handle 36; Keroseneis pouredinto-the heatingcup or pan'35 andthesame is arranged under the generatingelement 13' af-v ter which thekerosene is-lighted and a sufficient amount of fueloil is permitted toenter the generating element. The heat from the heating cup or pan-35will initially heat the generating, or gasifying'element 13 until thetit) gas starts to feed through the nozzle 27. The gas from the nozzle27 will then be ignited and the valve 18 will be controlled by themanipulating handle 19 to permit the fuel oil to be fed to thegenerating element 13 to the supply pipe 16 where it will becontinuously gasified or generated into a gas as it feeds through thepipes 14 and 15, and the pipes 21 and 26 to the nozzle 27. The jet orflame from the nozzle 27 will be deflected or spread laterally by aspreader element 37 adjustably supported from the depending stem 31. Theflame will thus be directed upwardly and outwardly around the air andgas mixing and heat radiating element 28, a part of the heat beingdeflected inwardly and around the pipes 14: and 15 of the generatingelement, by the convex underides of the depending arch shaped bottom 30.At the same time the cold air descending through the pipe 33 will bedeflected laterally through the perforations 34: and the perforations 32to thoroughly mix with the gas and flame whereby to promote a thoroughand complete combustion. It is of course understood that after theburner is started, the heating pan or cup 35 is removed. The perforatedor foraminated walls of the rectangular element 29 serve to spread orradiate the heat to uniformly distribute the same through the fire boxof the furnace and prevent the draft from drawing the same through thechimney before it has had sufiicient time to thoroughly function to heatthe furnace fire boX.

I claim:

1. In a liquid fuel heating device, a fuel gasifying elementrespectively connected at its opposite ends with a fuel supply and asubter-posed burner nozzle, and an air and gas mixing and heat radiatingmember supported in super-posed relation to the gasifying element, saidmember comprising a rectangular foraminated body having a double archshaped bottom.

2. In a liquid fuel heating device, a fuel gasifying elementrespectively connected at its opposite ends with a fuel supply and asubter-posed burner nozzle, and an air and gas mixing and heat radiatingmember supported in super-posed relation to the gasifying element, saidmember comprising a rectangular foramiuated body having a double archshaped bottom and a spreader element depending from the bottom of saidmember and overlying the nozzle, to cause the flame or jet therefrom toencompass the air and gas mixing and heat radiating member.

3. In a liquid fuel heating device, a fuel gasifying elementrespectively connected at its opposite ends with a fuel supply and asubter-posed burner nozzle, and an air and gas mixing and heat radiatingmember supported in super-posed relation to the gasifv ing element, saidmember comprising a rectangular foran'iinated body having a double archshaped bottom and a spreader element depending from the bottom of saidmember and overlying the nozzle, to cause the flame or jet therefrom toencompass the air and gas mixing and heat radiating member the convexunder surfaces defined by the double arch shaped bottom, serving todirectthe heat circumferentially about the peripheries of the leads ofthe gasifying element.

4. A liquid fuel heating device including a fuel gasifying elementcomprising a substantially U-shaped pipe member having horizontallydisposed parallel leads connected at one end by a bight portion, thefree end of one of the said leads having communication with a source offuel supply, the free end of the other lead having communication with asubter-posed burner n-ozzle, an air and gas mixing and heat radiatingmember supported in super-posed relation to the gasifying element, saidmen1- ber comprising a rectangular foraminous body having a double archshaped bottom, a spreader element depending from the bottom of saidlatter member and overlying the nozzle to cause the flame or jettherefrom to encompass said member and the convex under surfaces definedby the depending arch shaped bottom serving to direct a portion of theheat circumferentially about the peripheries of the leads of thegasifying element whereby to thoroughly heat the same to generate thegas from the fuel flowing therethrough.

5. A liquid fuel heating device including a fuel gasifying elementcomprising a substantially U-shaped pipe member having horizontallydisposed parallel leads connected at one end by a bight portion, thefree end of one of the said leads having comn'iunir'tation with a sourceof fuel supply. the free end of the other lead having communication witha. subtcr-p-osed burner nozzle, an air and gas mixing and heat radiatingmember supported in super-posed relation to the gasifying element, saidmember comprising a rectangular foraminous body having a double archshaped bottom, a spreader element dc 'iending from the bottom of saidlatter member and overlying' the nozzle to cause the flame or jettherefrom to encompass said member and the convex under surfaces definedby the double arch shaped bottom serving to direct a portion of the heatcircun'iferentially about the peripheries of the leads of thegasi't'ying element whereby to thoroughly heat the same to generate thegas from the fuel flowing therethrough and means for con trolling andregulating the liquid fuel supply.

6. A liquid fuel heating device including a fuel gasifying elementcomprising a substantially U-shaped pipe member having horizontallydisposed parallel leads conneoted at one end by a bight portion, thefree end of one of the said leads having communication with a source offuel supply, the free end of the other lead having communication with asubter-posed burner nozzle, an air and gas mixing and heat radiatingmember supported in superposed relation to the gasifying element, saidmember comprising a rectangular foraminous body having a double archshaped bottom, a spreader element depending from the bottom of saidlatter member and overlying the nozzle to cause the flame or jettherefrom to encon'ipass said member and the convex under surfacesdefined by the double arch shaped bottom serving to direct a portion ofthe heat circuinferentially about the peripheries of the leads of thegasifying element whereby to thoroughly heat the same to generate thegas from the fuel flowing there through and means for controlling andregulating the liquid fuel supply, said latter means consisting of avalve, an operating element therefor and indicating means carried by theoperating element and adapted to cooperate with a dial.

7, A liquid fuel heating device including a fuel gasifying elementcomprising a substantially U-shaped pipe member having horizontallydisposed parallel leads connected at one end by a bight portion, thefree end of one of said leads having communication with a source of fuelsupply, the free end of the other lead having communication with asubter-posed burner nozzle. an air and gas mixing and heat radiatingmember supported in super-posed relation to the gasifying element, saidmember comprising a rectangular foraminous body having a double archshaped bottom, aspreader element depending from the bottom of saidlatter member and overlying the nozzle to cause the flame or jettherefrom to encompass said member and the convex under surfaces definedby the double arch shaped bottom serving to direct a portion of the heatcircumferentially about the peripheries of the leads of the gasifyingelement whereby to thoroughly heat the same to generate the gas from thefuel flowing therethrough and means for initially heating the gasifyingelement comprising a fuel pan insertable beneath the gasifying element.

ROBERT LEE GONDRA.

